Display screen or portion thereof with graphical user interface



FIG. 1 is a front view of a display screen or portion thereof with graphical user interface, showing our new design; and,

FIG. 2 is a front view of the display screen or portion thereof with graphical user interface of FIG. 1, in which a mobile terminal in broken lines is provided to illustrate an example environment.

The broken lines are for environmental purposes only and form no part of the claimed design. 

CLAIM The ornamental design for a display screen or portion thereof with graphical user interface, as shown and described. 